Generalised dorsum of Rhodacarus, from here.

Belongs within: Gamasina.

The Rhodacaridae are a group of mostly small, delicate free-living predatory mites commonly found in deeper soil layers (Lindquist et al. 2009).

Characters (from Lindquist et al. 2009): Palpi five-segmented, with separate tibia and tarsus; palptarsal apotele three-timed; legs IV with ten setae on genu (2 2/1, 3/1 1), ten on tibia (2 1/1, 3/1 2); male with sternal setae st5 on sternitigenital shield; female sternal shield fused with metasternal plates so as to include fourth pair of sternal setae; anterior portion of female sternal shield and male sternitigenital shield undifferentiated from more posterior portions.

<==Rhodacaridae [Rhodacarellinae, Rhodacarinae]
    |--Afrogamasellus K86
    |--Protogamasellopsis corticalis LKW09
    |--Tangaroellus LKW09
    |--Rhodacarellus Willmann 1935 K86
    |    |--R. corniculatus Willmann 1935 K86
    |    |--R. silesiacus Willmann 1936 K86
    |    `--R. vervacti K86
    |--Rhodacaropsis Willmann 1935 K86
    |    |--R. attenuata Loots 1969 K86
    |    |--R. botosaneanui Petrova & Beron 1973 K86
    |    |--R. cubana Petrova & Beron 1973 K86
    |    `--R. inexpectata Willmann 1935 K86
    `--Rhodacarus Oudemans 1902 K86
         |--R. ancorae Karg 1971 K91
         |--R. angustiformis K86
         |--R. berresfordi Loots 1969 K86
         |--R. calcarulatus Berlese 1921 K86
         |--R. coronatus Berlese 1921 K91
         |--R. denticulatus K86
         |--R. marksae K86
         |--R. minimus KA90
         |--R. pallidus Hull 1918 K86
         |--R. roseus Oudemans 1902 K86
         `--R. strenzkei Willmann 1957 K86

*Type species of generic name indicated


[K91] Koehler, H. H. 1991. A five year study on the secondary succession of Gamasina on a ruderal site: the influence of recultivation. In Dusbábek, F. & V. Bukva (eds) Modern Acarology: Proceedings of the VIII International Congress of Acarology, held in České Budĕjovice, Czechoslovakia, 6–11 August 1990 vol. 1 pp. 373-383. SPB Academic Publishing: The Hague.

[K86] Krantz, G. W. 1986. Acari: Rhodacaridae. In Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) (L. Botosaneanu, ed.) pp. 632-634. E. J. Brill / Dr. W. Backhuys: Leiden.

[KA90] Krantz, G. W., & B. D. Ainscough. 1990. Acarina: Mesostigmata (Gamasida). In: Dindal, D. L. (ed.) Soil Biology Guide pp. 583-665. John Wiley & Sones: New York.

[LKW09] Lindquist, E. E., G. W. Krantz & D. E. Walter. 2009. Order Mesostigmata. In: Krantz, G. W. & D. E. Walter (eds) A Manual of Acarology, pp. 124-232. Texas Tech University Press.

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